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Free entry in a Cournot market with overlapping ownership

Author

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  • Vives, Xavier
  • Vravosinos, Orestis

Abstract

We examine the effects of overlapping ownership among existing firms deciding whether to enter a product market. We show that in most cases—and especially when overlapping ownership is already widespread, an increase in the extent of overlapping ownership will harm welfare by softening product market competition, reducing entry, thereby (in contrast to standard results) inducing insufficient entry, and magnifying the negative impact of an increase of entry costs on entry. Overlapping ownership can mostly be beneficial only under substantial increasing returns to scale, in which case industry consolidation (induced by overlapping ownership) leads to sizable cost efficiencies.

Suggested Citation

  • Vives, Xavier & Vravosinos, Orestis, 2022. "Free entry in a Cournot market with overlapping ownership," CEPR Discussion Papers 17517, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:17517
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    Cited by:

    1. is not listed on IDEAS
    2. Qing Hu & Ryo Masuyama & Tomomichi Mizuno, 2025. "Common Ownership with Downstream Firm's Voluntary Investment," Discussion Papers 2520, Graduate School of Economics, Kobe University.
    3. Vives, Xavier & Vravosinos, Orestis, 2024. "Strategic complementarity in games," Journal of Mathematical Economics, Elsevier, vol. 113(C).
    4. Cao, Zhigang & Li, Guopeng & Shen, Sixian & Zhu, Feng, 2025. "Potentials in quadratic Cournot cross-holding games," Journal of Mathematical Economics, Elsevier, vol. 119(C).
    5. Jihwan Do & Jeremy Kettering, 2025. "The Value of Information in Oligopoly with Endogenous Entry," Working papers 2025rwp-253, Yonsei University, Yonsei Economics Research Institute.
    6. Liu, Yi & Matsumura, Toshihiro, 2025. "Fuel diversification among firms and common ownership," MPRA Paper 125747, University Library of Munich, Germany.
    7. De Giovanni, Domenico & Ruble, Richard & Zormpas, Dimitrios, 2025. "Strategic capacity investment with common ownership," European Journal of Operational Research, Elsevier, vol. 327(1), pages 340-351.

    More about this item

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L21 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Business Objectives of the Firm
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices

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